This 'acts_as' extension provides the capability for having a default object. The class that has this specified needs to have a default column defined as an integer, string or boolean on the mapped database table

ActiveRecord plugin to validate values of column in specified word

With ActsAsExpirable, you can mark ActiveRecord records as expired and programmatically find expired record.

Filter attributes and stuff.

acts_as_flexigrid is ActiveRecord plugin for Flexigrid

Rails plugin to handle first_name, middle_names and last_name combinations.

A helper to wrap an ActiveRecord attribute with ActiveSupport::StringInquirer.

Easily define abstract methods and callbacks for superclasses and modules

Easily define abstract methods and callbacks for superclasses and modules

Rendering business objects in ISDOC format

A simple plugin that automatically generates a key for a model on create. It takes care of protecting the key, automatically generating it and making sure it is unique.

ActsAsLearnable is a Ruby gem for ActiveRecord models. It provides a simple way to create flashcards in your app. It automatically schedules flashcards for review depending on recall quality (1 to 5). You can easily create a Spaced Repetition System (SRS) using this gem.

An ActiveRecord plugin that assists in acts_as_living stage progressions.

Barebones acts_as_list

Represent ActiveRecord markdown text columns as Markdown objects using various external libraries to convert to HTML.

Represent ActiveRecord Markdown, Textile, Wiki text, RDoc columns as Markdown, Textile Wikitext, RDoc objects using various external libraries to convert to HTML. Includes markup extension methods.

Make cache methods on ActiveRecord easy!

Encode Trees in RDBMS using nested interval method for powerful querying and speedy inserts.

It allows to handle JSON and JSONB fields as if they are proper database columns, handling default values, type casting and easier validation.

acts_as_notifier is an add-on for ActiveRecord models used to notify users of new and updated records via ActionMailer emails. The notifications can be make conditional and recipient lists can be specified at runtime using a proc or method name. acts_as_notifier can be configured to send emails via DelayedJob.